The I-80 sinkhole which opened on the I-80 freeway's median and closed both eastbound westbound lanes has been filled and both lanes are open again. The cause of the I-80 three-foot-wide and eight-foot-deep sinkhole, is still under investigation. However, according to Caltrans spokeswoman Rochelle Jenkins, the I-80 sinkhole was most likely due to “water moving underground near the highway,” reported The Sacramento Bee on Aug. 23, 2013.
The I-80 sinkhole was discovered about a half mile west of Donner Pass Road in Truckee. The sinkhole was discovered in the median of Interstate 80 around 12:45 a.m. closing down both eastbound and westbound lanes.
On Friday, the westbound lane of Interstate 80 opened again around 10:40 a.m. and the eastbound lane opened again around 2:45 p.m.
According to Caltrans spokeswoman Rochelle Jenkins, the I-80 sinkhole has been filled with slurry, a cement mixture.
So far there are no further reports of any additional sinkholes, stress, or cracking on I-80 which is a major freeway between Northern California and Nevada.
A stream that runs underneath the road is considered to have been the most likely cause of the I-80 sinkhole.